Stability of Strength and Deformation Characteristics of Expanded Polystyrene (EPS) within the Time of Long-Term Investigation of Creep Strain under Permanent Compressive Loading

The results of investigation of strength (<em>s</em><sub>10 %</sub>, <em>s<sub>cr</sub></em>) and deformability (<em>E</em>) characteristics of expanded polystyrene specimens are presented. The results are based on the short-term compressio...

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Bibliographic Details
Main Authors: Saulius VAITKUS, Ivan GNIP, Sigitas VĖJELIS
Format: Article
Language:English
Published: Kaunas University of Technology 2013-05-01
Series:Medžiagotyra
Subjects:
Online Access:http://matsc.ktu.lt/index.php/MatSc/article/view/4442
Description
Summary:The results of investigation of strength (<em>s</em><sub>10 %</sub>, <em>s<sub>cr</sub></em>) and deformability (<em>E</em>) characteristics of expanded polystyrene specimens are presented. The results are based on the short-term compression in the organization of long-term creep study. For the experiments identical specimens stored 5 years at ambient temperature (23 ±2)<sub> </sub>°C and relative humidity (50 ±5) % as well specimens after removal long-term loading were used. There were established, that difference between experimental values of stress and initial modulus of tested expanded polystyrene specimens with confidence probability <em>P</em> = 90 % (on-sided test) is negligible (random).<p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.19.2.4442">http://dx.doi.org/10.5755/j01.ms.19.2.4442</a></p>
ISSN:1392-1320
2029-7289